#main {
    margin: 180px auto;
    width: 500px;
    height: 500px;
    background-color: #ffffff;
    text-align: center;
    font-family: "宋体", "Consolas";
    border-radius: 5px;
}

body {
    background-image: url("./bg.png");
    background-repeat: no-repeat;
}

.block {
    text-align: center;
    width: 350px;
    height: 70px;
    margin-top: 20px;
    margin-bottom: 20px;
    margin-left: auto;
    margin-right: auto;
    line-height: 70px;
}

span {
    height: 20px;
    color: #42ca6b;
    font-weight: bold;
}

button, #reg {
    margin-top: 20px;
    width: 170px;
    height: 40px;
    background-color: #1890ff;
    border-radius: 5px;
    border: none;
    font-size: 18px;
    font-family: "幼圆";
    color: white;
}

/* button:hover {
    font-size: 16px;
}

button:active {
    font-size: 14px;
}

#reg:hover {
    font-size: 16px;
}

#reg:active {
    font-size: 14px;
} */


h1 {
    background-color: #e9f6fe;
    border-radius: 5px 5px 0px 0px;
    height: 50px;
    color: #409edb;
    font-size: 20px;
    line-height: 50px;
}
